Description
Volumetric flask, brown glass is a precision laboratory vessel designed for accurate preparation and dilution of measured liquid volumes in volumetric analysis. This 20 ml flask uses brown glass to help protect light-sensitive contents and is fitted with a glass stopper plus a standard ground joint 10/19 for a secure seal during mixing and short-term holding. White graduations on the neck provide a clear indication of the nominal volume under typical laboratory lighting. Supplied as a pack of 2 pc(s) with a weight of 0,076 kg, it is convenient for stocking multiple workstations or running parallel assays. From manufacturer Hirschmann, the flask supports routine quantitative tasks including preparation of calibration standards, dilution of stock solutions to defined concentrations, and handling of moderate aliquots in analytical chemistry, quality control and teaching labs. Its combination of light-protective glass, ground-joint stopper and white markings meets the practical needs of laboratories that depend on classic volumetric glassware at the 20 ml scale.
This article is part of Volumetric flasks, in Volumetric glassware.
Key features
- Pack size: 2 pc(s)
- Nominal volume: 20 ml
- Material: Brown glass
- Stopper: Glass stopper
- Ground joint: 10/19
- Graduations: White
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Questions about Volumetric flask, brown glass, w. glass stop., st.gr.joint 10/19, 20ml
What is this article?
Volumetric flask, brown glass, w. glass stop., st.gr.joint 10/19, 20ml is the article on this page. Luminix Health distributes Hirschmann for laboratory use. It sits in Volumetric flasks, inside Volumetric glassware, in Labware.
A volumetric flask is calibrated to contain one volume at a reference temperature, with a single mark on a narrow neck. Class A is the tight tolerance. It is not a storage bottle and it is not for heating. The stopper is part of the calibrated article.
Volumetric glassware is glass that has been calibrated to contain or to deliver one stated volume at a reference temperature. That calibration is the whole point. Class A and class AS have a tighter tolerance than class B. A volumetric flask contains. A pipette and a burette deliver. A measuring cylinder is the coarser reading, used when the volume is not the result. The classes sit under ISO laboratory glassware. The chain back to the unit of volume is the work of the BIPM and of NIST.
Which category should I open next?
The category is Volumetric glassware. The sub-category is Volumetric flasks. The catalogue is Labware.
Shelves beside this one are Measuring cylinders, Burettes, Mixing cylinders and Volumetric accessories & certificates.
What should I check before I order?
The technical information on this page is the manufacturer's sheet. Read that, not a rewritten specification.
When this page shows a safety data sheet, use that manufacturer file. Hazard text does not belong in the sales description. For a pack size, a grade or a certificate that is not on the page, send a quote request or contact the team.
How does ordering and shipping work?
Luminix Health distributes this article from the heart of Europe. Articles in stock ship within 2–5 business days. Standard delivery is free from €250 excl. VAT. Cold-chain goods and dangerous goods under ADR are never included in that free delivery. The terms are in the Shipping Policy. The full brand index is on shop by brand. Who we are is on about us.
Which other categories should I open?
The seven catalogues are Labware, Lab chemicals, Lab instruments, Lab consumables, Chromatography equipment, Lab safety equipment and Life Science & Microbiology.